28700760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1279}}^1$

素因数の和:1321

約数の個数: 128

約数和(自身を含む): 99532800

約数和(自身を除く): 70832040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 24, 30, 33, 34, 40, 44, 51, 55, 60, 66, 68, 85, 88, 102, 110, 120, 132, 136, 165, 170, 187, 204, 220, 255, 264, 330, 340, 374, 408, 440, 510, 561, 660, 680, 748, 935, 1020, 1122, 1279, 1320, 1496, 1870, 2040, 2244, 2558, 2805, 3740, 3837, 4488, 5116, 5610, 6395, 7480, 7674, 10232, 11220, 12790, 14069, 15348, 19185, 21743, 22440, 25580, 28138, 30696, 38370, 42207, 43486, 51160, 56276, 65229, 70345, 76740, 84414, 86972, 108715, 112552, 130458, 140690, 153480, 168828, 173944, 211035, 217430, 239173, 260916, 281380, 326145, 337656, 422070, 434860, 478346, 521832, 562760, 652290, 717519, 844140, 869720, 956692, 1195865, 1304580, 1435038, 1688280, 1913384, 2391730, 2609160, 2870076, 3587595, 4783460, 5740152, 7175190, 9566920, 14350380, 28700760]

約数ペア:

[(1, 28700760), (2, 14350380), (3, 9566920), (4, 7175190), (5, 5740152), (6, 4783460), (8, 3587595), (10, 2870076), (11, 2609160), (12, 2391730), (15, 1913384), (17, 1688280), (20, 1435038), (22, 1304580), (24, 1195865), (30, 956692), (33, 869720), (34, 844140), (40, 717519), (44, 652290), (51, 562760), (55, 521832), (60, 478346), (66, 434860), (68, 422070), (85, 337656), (88, 326145), (102, 281380), (110, 260916), (120, 239173), (132, 217430), (136, 211035), (165, 173944), (170, 168828), (187, 153480), (204, 140690), (220, 130458), (255, 112552), (264, 108715), (330, 86972), (340, 84414), (374, 76740), (408, 70345), (440, 65229), (510, 56276), (561, 51160), (660, 43486), (680, 42207), (748, 38370), (935, 30696), (1020, 28138), (1122, 25580), (1279, 22440), (1320, 21743), (1496, 19185), (1870, 15348), (2040, 14069), (2244, 12790), (2558, 11220), (2805, 10232), (3740, 7674), (3837, 7480), (4488, 6395), (5116, 5610)]